baber/WOPTO huggingface dataset:
Patent GB-732503-A (GB)
Title: Improvements in or relating to separation of iron values from titaniferous iron material
IPC: C22B34/12
Filed: 1953-02-25
Abstract: A method for separating iron values from titaniferous oxidic iron material comprises providing in the titaniferous iron material low-valency titanium values in amount sufficient to accept the oxygen of the iron values in the material and removing the iron values as volatile ferric chloride by reacting with chlorine.  The term low-valency titanium values includes oxidic titanium compounds and complex compositions in which the titanium is present in the di- or tri-valent state.  The low-valency titanium values may be provided in the material by swelling it at a temperature in excess of 1500 DEG C., so that some separation of molten iron from the slag occurs, until sufficient low-valency titanium values are present in the slag which is then chlorinated, or they may be added to the material as a composition, e.g. Ti2O3, containing sufficient di- or tri-valent titanium.  The chlorination takes place in a fluidized bed at 550-950 DEG  C.ALSO:A method for separating iron values from titaniferous oxidic iron material comprises providing in the titaniferous iron material lowvalency titanium values in amount sufficient to accept the oxygen of the iron values in the material and removing the iron values as volatile ferric chloride by reacting with chlorine.  The term low-valency titanium values includes oxidic titanium compounds and complex compositions in which the titanium is present in di- or tri-valent state.  The low-valency titaunium values may be provided in the material by smelting it at a temperature in excess of 1500 DEG C. so that some separation of molten iron from the slag occurs, until sufficient low-valency titanium values are present in the slag which is then chlorinated, or they may be added to the material as a composition, e.g. Ti2O3, containing sufficient di- or tri-valent titanium.  The chlorination takes place in a fluidized bed at 550-950 DEG  C.
Patent GB-904765-A (GB)
Title: An improved method of or means for limiting the shearing operation or other work, on machines for dressing or finishing textile fabrics
IPC: D06C13/00
Filed: 1960-02-16
Abstract: 904,765. Finishing fabrics. PAULUS, H. Feb. 16, 1960 [Feb. 19, 1959], No. 5418/60. Class 42 (1). The width of fabric treated by a shearing or other dressing operation is limited by displacing, in opposite directions transverse to the direction of movement of the fabric T, the table 2 which supports the fabric and the shearing or dressing member 8 so as to leave predetermined widths of the edges T<SP>1</SP>, T<SP>11</SP> untreated. In the embodiment shown, the fabric T is sheared by helical blades 9 mounted on a cylinder 8 carried by bearings 6 on a cross-bar 4 which also carries a flat blade-holder. A photo-electric cell P scans the selvedge T<SP>1</SP> and causes a piston 5 to displace the cross-bar 4 and with it the cylinder 8 so that a predetermined width of the selvedge remains unsheared. Similarly, a second cell P<SP>1</SP> causes a piston 3 to shift the table 2 to leave a predetermined width of the selvedge T<SP>11</SP> unsheared since shearing takes place only when the table 2 holds the fabric against the cylinder 8. In a modification, either of these displacements are combined with a fabric-guiding system for dis. placing the fabric laterally during longitudinal movement thereof. In a further modification, a plurality of cylinders having helical blades alternatively of right-hand and left-hand pitch are provided.
Patent GB-332255-A (GB)
Title: Improvements in or relating to the manufacture of films, foils or the like
IPC: B29D7/01
Filed: 1929-02-18
Abstract: 332,255. Frenkel, G. Feb, 18, 1929. Processes and apparatus for making films of cellulose esters and ethers.-The first layer of a composite film is made of minimum thickness e.g. 0.01 mm., so as to require a minimum period for drying, and after being stripped from its support is used as a carrier band for the further layers, which are preferably also of minimum thickness. The first layer may be made by pouring solution on to a. metal drum or band, taking off the film, and passing it to a series of rollers where drying is completed. The layer is then used as a carrier for subsequent layers, and the whole operation of forming a composite film may be continuous. Since the first layer becomes an integral part of the composite film the only stripping that occurs is when the first layer is removed from the drum or band on which it has been made. Preferably adjacent layers of the composite film have different solubility characteristics and this may be obtained by using different cellulose derivatives; the first layer may be acetyl cellulose and the next may be ethyl cellulose. The surface of the first layer may be treated by saponification or reduction so as to render it insoluble in the solution of the film forming layer subsequently applied. Layers of shellac or resin may be included in the composite film. Films may be produced having layers impervious to water, airtight layers, layers suitable for the application of light sensitive solutions, or for adhering to other surfaces. Ripples formed in flowing the solutions persist in the dried film layers and in order to increase the strength of the composite film or to utilise the optical effects of the ripples so as to obtain patterns such as a diamond effect, subsequent layers may be poured in a direction different from the direction of formation of preceding layers. Specification 332,254 is referred to.
Patent GB-431842-A (GB)
Title: Improvements in or relating to aluminium alloys
IPC: C22C21/12
Filed: 1935-02-20
Abstract: Age-hardenable aluminium alloys contain 3-5 per cent of copper, 1.3-1,4 per cent of magnesium, 0,4-0,7 per cent of silicon, and 1,25-1,45 per cent of manganese.
Patent GB-210641-A (GB)
Title: A stop motion for loom working a double lift, double cylinder jacquard machine
IPC: D03D51/00
Filed: 1923-02-26
Abstract: 210,641. Whittle, J. Feb. 26, 1923. Stop - motions acting on derangement of jacquard mechanism. To stop the loom when the cards in a double lift double cylinder jacquard get out of time, two spare needles and hooks controlled bv the odd cards and even cards respectively control a perforated finger D, Figs. 2, 3 and 4, connected by a spring a<3> and a cord a<2> to a catch lever mounted, on the weft fork holder shank, the cord a<2> being actuated to move the catch lever into the path of the weft hammer if the cards get out of time whereby the loom is stopped, whilst normally the catch lever is moved out of the path of the weft hammer by a weight. One spare hook is connected by a cord d<2> to a spring-controlled lever d which guides the finger D. The second spare hook is connected by a cord e<1> to a weighted hook E having a portion e<2> which can pass through the finger D and another portion e<3> for preventing movement of the lever d under the action of the spring d<1> except when the second spare hook has returned to its bottom position. When the cards are working properly, the finger D is moved out of the path of the portion e<2> of the hook E when the latter is raised, but when the cards do not work properly, the portion e<2> engages and raises the finger D thereby actuating the cord a<2> to stop the loom. According to the Provisional Specification, the catch lever is spring-controlled.
Patent GB-608391-A (GB)
Title: Improvements relating to electric lighting apparatus for use in explosive atmospheres
IPC: F21S9/04
Filed: 1946-02-21
Abstract: 608,391. Dynamo lamps. LUCAS, Ltd., J., and WATSON, E. A. Feb. 21, 1946, No. 5488. [Class 39(ii)] In an electric lighting apparatus of the type adapted particularly for use in mines and comprising a turbo-electric generator driven by compressed air, the light source comprises one or more tubular gas discharge lamps mounted within a glass or other transparent or translucent enclosure and provided with means for directing streams of air on to both ends of the tube or tubes in the event of fracture of the enclosure. The A.C. generator a and turbine b are mounted above a lamp housing c provided with a duct g formed by a longitudinal recess covered by a plate h and leading from the compressed air inlet to both ends of the tube or tubes, air outlet holes k being provided in the plate h in positions adjacent to the ends. The extremities of the plate h are bent at rightangles to provide mounts for sockets i which receive contact pins j on the ends of the tubes. The housing is maintained air tight by a glass or other window e, so that the lamps are surrounded by compressed air. In the event of fracture of the window the pressure within the housing is released and streams of air flow from the duct through the holes k and on to both ends of the tubes. An automatic switch of known form is provided, comprising a fixed contact m and a movable contact n carried by a deformable capsule o which is compressed to hold the contacts apart when subjected to the pressure within the housing during operation of the lamp. The release of the pressure allows the contacts to close and short circuit the generator.
Patent GB-548955-A (GB)
Title: Improvements relating to safety guards of power presses and like machines
IPC: F16P3/00
Filed: 1941-04-28
Abstract: 548,955. Machinery guards. PETRIE, D. G. April 28, 1941, No. 5506. [Class 80 (iv)] Relates to guards of power presses and like machines of the kind in which the guard usually in the form of a gate is swingably hinged in a frame which, in the event of the operator's hand being caught in the path of the guard as it returns to its effective position, moves bodily with the guard to carry the operator's hand away from the tool. According to the invention, a thrust-transmitting means is provided between guard and frame which is normally ineffective but is automatically rendered effective to actuate the frame in the event of the operator's hand intercepting the movement of the guard. The guard 1 is hinged at 2 in a frame 3 which itself is hinged to the framework at 4. The guard is divided into two parts 7, 8 hinged at 5, and the part 8 has two tail portions 9, '10 which in normal position upstand from the hinge 5 the parts 7, 8 being then in the same plane. The guard is oscillated by a crank 14 and rod 15 and if it should descend upon the operator's hand, the part 7 will be displaced, Fig. 2, and the tail portions 9, 10 will now abut stops 11, 12 on the frame to drive the latter instead of utilizing the operator's hand for this purpose. In a modification, Fig. 3, the hinge of the guard has a universal joint at 17 and a slot at 18, so that when obstructed it is lifted to bring a lateral projection 19 on the guard in front of a lug 20 on the frame. In further modifications ,1) the lowest bar of the guard is movable therein either in the plane of the guard or transversely thereto (2) the lower part of the gate is adjustable relatively to the upper part by setscrews to vary the width of the gap for the operator's hand.
Patent GB-233089-A (GB)
Title: Improvements in springs and shock absorbing devices for road vehicles
IPC: B60G11/04
Filed: 1924-03-04
Abstract: 233,089. Ellingham, E. H. March 4, 1924. Laminar springs.-A spring suspension for road vehicles comprises two springs, mounted separately or combined in a single mounting, one of which is always in action while the other is brought into action under increasing loads by levers bearing at one end on the second spring and shaped at the other end to have variable contact with either of the springs without shortening its effective length. In a modification the first spring is omitted, the second spring being acted upon by both ends of the levers. In the arrangement shown in Fig. 1, the spring A is connected at its ends to the frame E by links, and the spring B is attached, rigidly, or by a link, to the centre of the spring A to which the axle F is secured. The levers C comprise two side-plates connected together by parts G, H, I. The parts I bear on the ends of the spring B, the parts H bear against brackets D on the frame E, and the parts G bear on the centre of the spring A or B according as the central connection between the springs is rigid or otherwise. Antifriction rollers may be provided at H and I or the parts H may bear on rubber buffers The parts G and, if desired, the parts H are curved so that the ratio of the lengths of the lever-arms varies with the load. The plates of the spring A are thinner than usual, the top plate being thicker, and less cambered before assembly, than the lower ones so that the spring undergoes a considerable deflection before the top plate commences to carry a load. In the arrangement shown in Fig. 4, a spring N is mounted at its centre to move vertically relatively to a full cantilever spring M. A lever K, connected to a link L at the axle end of the springs, is pivoted at O to the central pivotal mounting of the cantilever and carries a cam which deflects the spring N. The spring N may be actuated bv a lever of the form shown in Fig. 1. The lever-actuated spring may be arranged transversely of the vehicle so as to work in conjunction with the suspensions at both sides thereof.
Patent GB-737020-A (GB)
Title: Improvements in or relating to hydrotreating lubricating oils
IPC: B01J27/06
Filed: 1953-02-27
Abstract: Mineral lubricating oil is treated with hydrogen in the presence of a platinum catalyst, at a temperature of 400-700 DEG  F. and a pressure of 50-250 p.s.i., the hydrogen consumed per barrel of oil being less than 150 cu. ft.  The catalyst may be platinum supported on a solid carrier such as alumina or silica gel.  The hydrofined product may be freed from hydrogen and H2S and then further purified for example by washing with caustic soda or by steam stripping; the hydrogen may be recycled to the process.
Patent GB-742942-A (GB)
Title: Automatic gain control in television apparatus
Inventor: MEDWAY STUART AYNOTT
IPC: H04N5/53
Filed: 1953-02-28
Abstract: 742,942. Automatic gain control. MURPHY RADIO, Ltd. Feb. 26, 1954 [Feb. 28, 1953], No. 5696/53. Class 40 (5). In a television A.G.C. circuit for positivelymodulated signals, video signals in which the sync. signals comprise peak positive are applied from a video stage to the grid of a cathode follower 3. A.C. coupling is employed, the valve 3 acting as a D.C. restorer by virtue of grid current and being arranged to be cut off for signals more negative than the black level. The adjustment may be made by means of an anode resistance 17. D.C. coupling to this valve may alternatively be used. The cathode follower 3 is cathode coupled to an amplifier 4 comprising a triode-connected pentode, the anode of which is fed with gating impulses, derived from the line or frame generators via a transformer 9. A delay network 8 is interposed so that the valve is only capable of conduction during the # back porch " period following the sync. pulses. A smoothed A.G.C. voltage is obtained across resistance 14. The signal level at which conduction occurs in the valve 4 is determined by the grid potential, derived from a variable potentiometer 12 which is utilized as contrast control. In an alternative arrangement, Fig. 2 (not shown), the gating pulses are applied to the grid, instead of the anode of the valve 4 via a potentiometer comprising the contrast control. In this case the anode is connected via a load resistor to the H.T. line and the negativegoing pulses which appear in the anode circuit are applied via a blocking condenser to a diode rectifier, the smoothed output of which constitutes the A.G.C. voltage.
Patent GB-1477613-A (GB)
Title: Methods and apparatus for handling hosiery
IPC: D06H3/16
Filed: 1975-02-11
Abstract: 1477613 Everting apparatus; knitting MARVEL SPECIALITY CO INC 11 Feb 1975 [25 Sept 1974] 5716/75 Headings D1K and D1X [Also in Divisions B8 and F2] A string of interconnected socks or other hose from a knitting machine are everted, separated and delivered to a stacking station by apparatus comprising a hollow tubular form 11 connected to a source of vacuum, the string being first loaded on the form and then moved to allow the first sock S 1  to be substantially fully everted in the open mouth of the form, grasping means 17 which hold the doubled over portion of the sock S and means such as a reciprocating pivotal arm 13 which pulls the sock off the form breaking a weak ring r 1  between the socks S 1  and S 2 , the latter suitably being held by hand, and carries the sock to a stacking station 40 where the grasping means are released. To assist in loading the string the form 11 may be connected to a compressed air source and a motor driven roller 20 engage the form in a loading position (broken lines). The grasping means comprise fingers 17a, b which are opened and closed at appropriate times by an overcentre linkage 48. The arm 36 is moved by a pneumatic cylinder 16 which is controlled from a switch 36. The number of cycles of the arm is automatically counted. The connection of the form 11 to compressed air and vacuum is controlled from a switch responsive to the position of the form. The rings r 1 , r 2  etc. interconntcting the hose may be knitted of alginate yarn.
Patent GB-137175-A (GB)
Title: Improved mechanism for converting rotary to reciprocating movement
IPC: F16H25/14
Filed: 1919-03-07
Abstract: 137,175. Hall, J. W. March 7, 1919. Valve-gear.-Relates to cam mechanism for converting rotary into reciprocating motion, as in operating the valves of internal-combustion engines, of the kind in which two disks provided with camgrooves are arranged face to face on a shaft, the reciprocating member being provided with rollers to engage the grooves, and the rollers passing from the groove in one disk to the groove in the other disk by reason of inclined surfaces formed at the end of the grooves. According to the invention, the cam-grooves are so arranged that, during one cycle, reciprocations of different amplitudes and of different periods may be obtained, the number of reciprocations being independent of the number of revolutions. In the arrangement shown, cam-disks with grooves, Figs. 5 and 6, are arranged opposite to each other on the shaft and are engaged by a shuttle G carried by the reciprocating member as shown in Fig. 4. With this arrangement as indicated in Fig. 7, one complete reciprocation is obtained during two revolutions of the shaft, although the reciprocating member rises and falls three times. The shuttle is preferably formed as a cylindrical member engaging the end of the reciprocating member and having projecting ends which are thin and flat or slightly curved to engage the cam-grooves and may be retained in the extreme positions by a spring-pressed ball; or the shuttle may be of uniform thickness throughout and provided with filling-pieces to engage the reciprocating member as shown in Fig. 4.
Patent GB-664453-A (GB)
Title: Improvements in or relating to electrical resistors and combined anchorage and connection members for use therein
IPC: H01C1/14
Filed: 1949-03-02
Abstract: 664,453. Binding-posts; direct connections between conductor. PAINTON & CO., Ltd., and BENHAM, C. M. March 2, 1950 [March 2, 1949], No. 5763/49. Class 38 (i). A terminal connector for a resistor of the kind comprising a ceramic former 1 wound with resistance wire 2, comprises a tubular rivet 7 secured in a hole in the former, its outer end having a flange 8 beneath which is a connecting element 9 comprising wire of comparable diameter to that of the resistance wire, wrapped round the rivet so as to leave at least one radiallyextending connecting limb 10 to which the end of the resistance wire is welded or silver soldered at 13 after being wrapped round the limb. A washer 11 may be provided adjacent wire 9, both being spot-welded to flange 8. A lead 16 is hand-soldered in the bore of the rivet or alternatively flange 8 may be provided with a soldering lug, Fig. 6 (not shown). The resistor is preferably coated with vitreous enamel. Connectors as above may be used as tapping terminals along a resistor. A number of rivets may be attached to a continuous length of wire forming the connecting elements 9, the wire being severed as each connector is required for attachment to a resistor, Fig. 4 (not shown).
Patent GB-472542-A (GB)
Title: Improvements in glass-vessel metal vapour current rectifiers having control electrodes
IPC: H01J13/22
Filed: 1936-02-26
Abstract: 472,542. Metallic - vapour rectifiers. SIEMENS-SCHUCKERWERKE AKT.-GES. Feb. 26, 1936, No. 5779. Convention date, March 12, 1935. [Class 39 (i)] To prevent or reduce independent discharges between the anode and control grid of a mercury vapour rectifier having a glass vessel, the filling comprises a gas, preferably argon, at a pressure such that the length of free path for the electrons in the space between the grid and anode is substantially equal to the length of free path for the electrons in the vapour under normal working conditions. The gas pressure may be between 0À005 mms. to 1À0 mms. The supplementary filling may consist of a mixture of rare gases with or without other gases or vapours. The grid may be so constructed that the part adjacent the anode is further from the walls of the vessel, which alternatively may be suitably bulged. The cross-sectional area of the grid openings may be large compared with that of the solid surface of the grid and the total cross-sectional area of the grid may be small compared with that of the anode arm.
Patent GB-575739-A (GB)
Title: An adjustable impedance device for use in wave guides
IPC: H01P5/04
Filed: 1944-03-30
Abstract: 575,739. Wave guides. BRITISH THOMSON-HOUSTON CO., Ltd., BROWN, L. W., and NICOLL, J. H. March 30, 1944, No. 5939. [Classes 40 (iii) and 40 (v)] A wave guide has its impedance changed by forming in the guide a sudden contraction in its cross-section by. means of a diaphragm or the equivalent, and providing two rods or probes of insulating material extending into the guide in the vicinity of the contraction and fixed in location longitudinally of the guide. Figs. 3 and 4 show respectively side and end views of a rectangular guide 1 in which the contraction 6 is in the form of projections 8 from opposite sides of the guide. The probes comprise rods 3, 4 of low-loss insulating material such as quartz extending adjustably into the guide. The probes may be arranged on the same side of the diaphragm or may be in the plane of the diaphragm. There may be two diaphragms. The diaphragms act as shunt inductance and the probes as shunt capacitance. The combination may be used as a variable matching impedance.
Patent GB-768136-A (GB)
Title: Improvements in or relating to electrical cartridge fuses
Inventor: STRAFFORD FREDERICK RICHARD WE
IPC: H01H85/041
Filed: 1954-03-01
Abstract: 768,136. Fusibie cut-outs. BELLING & LEE, Ltd. March 1, 1955 [March 1, 1954], No. 6008/54. Class 38 (1). The fusible element 3 of a cartridge fuse is secured by brass clips 6, 7 to an insulating sheet 1 having a cut-out 2, the sheet preferably being of compressible, non-inflammable material. The sheet is put into a glass housing 10 to which end caps 11, 12 are then cemented, ends 8, 9 being passed through apertures in the caps, bent over, and soldered thereto.